1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
*DECK FLDTH2
SUBROUTINE FLDTH2 (ISPLH,NEL,NUN,EVECT,MAT,VOL,IDL,KN)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Calculation of the averaged flux with a linear Lagrangian finite
* element or mesh corner finite difference method in hexagonal geometry.
*
*Copyright:
* Copyright (C) 2002 Ecole Polytechnique de Montreal
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version
*
*Author(s): A. Hebert
*
*Parameters: input
* ISPLH type of hexagonal mesh-splitting: =1 for complete hexagons;
* =2 for triangular mesh-splitting.
* NEL total number of finite elements.
* NUN total number of unknowns per energy group.
* EVECT variational coefficients of the flux. The information is
* contained in position EVECT(1) to EVECT(LL4) where LL4 is
* the order of the system matrices.
* MAT mixture index assigned to each element.
* VOL volume of each element.
* IDL position of the average flux component associated with each
* volume.
* KN element-ordered unknown list.
*
*Parameters: output
* EVECT averaged fluxes. The information is contained in positions
* EVECT(IDL(I)).
*
*-----------------------------------------------------------------------
*
*----
* SUBROUTINE ARGUMENTS
*----
INTEGER ISPLH,NEL,NUN,MAT(NEL),IDL(NEL),KN(14*NEL)
REAL EVECT(NUN),VOL(NEL)
*----
* LOCAL VARIABLES
*----
REAL TH(14)
SAVE TH
DATA TH/3*0.055555555556,0.166666666667,6*0.055555555556,
1 0.166666666667,3*0.055555555556/
*
NUM1=0
IF(ISPLH.EQ.1) THEN
SS=1.0/12.0
DO 40 K=1,NEL
IF(MAT(K).EQ.0) GO TO 40
EVECT(IDL(K))=0.0
IF(VOL(K).EQ.0.0) GO TO 30
DO 20 I=1,12
IND1=KN(NUM1+I)
IF(IND1.EQ.0) GO TO 20
EVECT(IDL(K))=EVECT(IDL(K))+SS*EVECT(IND1)
20 CONTINUE
30 NUM1=NUM1+12
40 CONTINUE
ELSE IF(ISPLH.EQ.2) THEN
DO 70 K=1,NEL
IF(MAT(K).EQ.0) GO TO 70
EVECT(IDL(K))=0.0
IF(VOL(K).EQ.0.0) GO TO 60
DO 50 I=1,14
IND1=KN(NUM1+I)
IF(IND1.EQ.0) GO TO 50
EVECT(IDL(K))=EVECT(IDL(K))+TH(I)*EVECT(IND1)
50 CONTINUE
60 NUM1=NUM1+14
70 CONTINUE
ENDIF
RETURN
END
|
